Question

Find the respective values of a, b and c satisfying
the following equations.
6a - 5b + 7c = 1. a + 5b + 6c = 3; 3a + 2b + 7c = 2​

Answer 1

Answer:

1. a=0

b=4

c=3

2. a=1

b=4

c= -3

3. a=2

b=5

c= -2

Step-by-step explanation:

1. 6a-5b+7c=1

L.H.S

=6*0-5*4+7*3

=0-20+21

=-20+21

=1

2. a+5b+6c=3

L.H.S

=1+5*4+6*-3

=1+20-18

=21-18

=3

3. 3a + 2b + 7c=2

L.H.S

=3*2+2*5+7* -2

=6+10-14

=16-14

=2